Cabinet door fixing device and power cabinet

The invention relates to the technical field of power equipment, and particularly discloses a cabinet door fixing device and a power cabinet, the cabinet door fixing device comprises a clamping mechanism and a supporting mechanism, the clamping mechanism comprises a first clamping piece, a second clamping piece and a rotating shaft, the first clamping piece and the second clamping piece are both connected with the rotating shaft and can rotate around the rotating shaft, the clamping mechanism can clamp the cabinet door, the supporting mechanism is connected with the rotating shaft of the clamping mechanism, and the supporting mechanism can support the cabinet body to prevent the cabinet door from shaking. The cabinet door fixing device can solve the swinging problem of the cabinet door, is simple in structure and convenient to operate, and reduces risks in the operation process. The invention further provides an electric cabinet which comprises a cabinet door, a cabinet body and the cabinet door fixing device